Spring lock and push-pull type door and window

Abstract

The utility model discloses a spring lock and a push-pull door and window, and belongs to the technical field of doors and windows. The anti-theft lock comprises a lock body, a containing cavity is formed in the lock body, a first lock plate and a second lock plate are rotationally installed in the containing cavity, one end of the first lock plate and one end of the second lock plate are connected with a first elastic piece, and the other ends abut against each other; the handle cover is rotationally installed on the lock body, and the handle cover is provided with a driving piece abutting against the second lock piece; and the lock block slides on the lock body, and one end of the motion path of the lock block is located on the motion path of the first lock plate or the second lock plate. The locking piece slides to the movement path of the first locking piece or the second locking piece, opening of the first locking piece or the second locking piece can be directly limited, the situation that a child pulls the handle cover to open the door and window by mistake is prevented, the function of a child lock is achieved, potential safety hazards are reduced, and the safety performance of the door and window is improved. In addition, the first locking plate or the second locking plate cannot be separated from the lock hook, the situation that the first locking plate or the second locking plate is pried and opened can be prevented, and the safety performance of the door and window is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, in particular to a latch and push-pull door and window. Background Art

[0002] Sliding doors and windows often use a touch lock to unlock and lock the doors and windows. The touch lock is generally composed of a lock body, a lock plate and a handle cover. The handle cover is located outside the lock body and is rotatably connected to the lock body, and the lock plate is inside the lock body. The lock plate can be pushed to lock or unlock by turning the handle cover. However, if children curiously turn the handle cover, they may accidentally open the door or window, which poses a safety hazard. Utility Model Content

[0003] The utility model aims to provide a latch and a sliding door and window to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solution adopted to solve the above technical problems is as follows: a touch lock, comprising: a lock body, a accommodating cavity is provided in the lock body, a first locking plate and a second locking plate are rotatably installed on the inner side of the accommodating cavity, a first elastic member is connected between the first locking plate and the second locking plate on the same side end, and the first locking plate and the second locking plate are arranged to be in conflict with each other at the other side end; a handle cover is rotatably installed on the lock body, and the handle cover is provided with a driving plate for pushing the second locking plate to rotate, so that the first locking plate and the second locking plate overcome the elastic force of the first elastic member and rotate in opposite directions to achieve unlocking; a lock block is slidably arranged on the lock body, and when the lock block is at one end of the movement path, the lock block conflicts with the first lock plate.

[0005] This technical solution has at least the following beneficial effects: when the lock block slides to one end of the motion path, the lock block contacts the first lock piece, so that the first lock piece cannot be rotated to open, that is, by directly limiting the rotation of the first lock piece, it prevents children from accidentally opening the door and window by prying the handle cover, thus realizing the function of a child lock, reducing safety hazards, and improving the safety performance of doors and windows. In addition, the first lock piece cannot be separated from the lock hook, and at the same time, it can also prevent the first lock piece and the second lock piece from being pried open, further improving the safety performance of doors and windows.

[0006] As a further improvement of the above technical solution, the lock body is rotatably mounted with a lock cylinder, the lock cylinder is provided with a slider, the lock block is provided with a guide groove for the slider to slide, and the sliding direction of the slider is perpendicular to the sliding direction of the lock block. By rotating the lock cylinder, the slider can be pushed under the restriction of the side wall of the guide groove, so that the slider can be operated to facilitate the opening and closing of the child lock.

[0007] As a further improvement of the above technical solution, an elastic ring is arranged on the periphery of the lock cylinder, a positioning block protrudes outward from the periphery of the elastic ring, and a positioning groove is provided on the side wall of the lock body for the positioning block to be embedded in. When the positioning block is embedded in the positioning groove, the position of the lock cylinder can be positioned and stabilized.

[0008] As a further improvement of the above technical solution, the elastic ring is provided with an elastic through groove near the positioning block. The elastic through groove is provided so that the positioning block has deformation space, thereby improving the elasticity between the positioning block and the elastic ring, and improving the reliability of the positioning block and the positioning groove.

[0009] As a further improvement of the above technical solution, the side wall of the accommodating cavity is also rotatably mounted with a third locking piece and a fourth locking piece, the third locking piece and the fourth locking piece are connected with a second elastic member between one end, and are set to abut against each other at the other end, the second locking piece and the third locking piece are set to abut against each other, and the driving piece and the third locking piece are set to abut against each other. The driving piece can push the third locking piece to rotate, thereby pushing the fourth locking piece to overcome the elastic force of the second elastic member and open, the third locking piece pushes the second locking piece to rotate, thereby pushing the first locking piece to overcome the elastic force of the first elastic member and open, realizing the locking structure of the double lock tongue, improving the stability and safety of the touch lock, and at the same time, the first locking piece and the second locking piece can prevent being pried and opened, while the third locking piece and the fourth locking piece can prevent being pried and opened.

[0010] As a further improvement of the above technical solution, the driving plate is arranged to be in conflict with the second locking plate. The driving plate can push the second locking plate and the third locking plate at the same time, which can improve the linkage between the second locking plate, the third locking plate and the driving plate and improve the reliability of the linkage relationship.

[0011] As a further improvement of the above technical solution, the lock body is rotatably mounted with a shielding cover, and the shielding cover and the handle cover just cover the opening of the accommodating cavity, and the accommodating cavity can be inserted into the end of the shielding cover close to the handle cover. The accommodating cavity needs to reserve a certain opening for people's fingers to insert to move the handle cover, but this opening is often easy to cause children to insert their fingers out of curiosity, resulting in the handle cover being accidentally opened. At the same time, this opening is also easy to cause dust accumulation inside and cause an unsightly appearance. Therefore, the shielding cover can effectively prevent children from accidentally touching it, thereby improving the safety performance function, and at the same time, it can also reduce dust accumulation inside and improve the aesthetics.

[0012] As a further improvement of the above technical solution, the lock body is rotatably mounted with a connecting column, the connecting column is threadedly mounted with a first wedge block, the first wedge block is slidably arranged in the accommodating cavity, the accommodating cavity is slidably arranged with a second wedge block that conflicts with the first wedge block, and the second wedge block is provided with a hook. By rotating the connecting column, the first wedge block is driven to move, and the second wedge block and the hook are pushed to move, and the hook can be extended from the end to install the lock body in the installation groove of the door and window, so that the installation and disassembly of the lock body can be facilitated, and the assembly efficiency is improved.

[0013] As a further improvement of the above technical solution, the connecting column is in the accommodating cavity, and the shielding cover covers the outside of the connecting column. By opening the shielding cover, the connecting column can be operated to facilitate the installation and removal of the lock body. At the same time, the shielding cover can also cover the connecting column, which can further improve the overall aesthetics of the lock body.

[0014] A sliding door and window comprises the above-mentioned latch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure when the shielding cover is opened in the embodiment of the utility model;

[0018] Figure 3 It is a schematic cross-sectional structure diagram of an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the lock body in the embodiment of the utility model;

[0020] Figure 5 a is a schematic diagram of the relative positions of the first locking piece and the locking block when locked in the embodiment of the utility model;

[0021] Figure 5 b is a schematic diagram of the relative positions of the first locking piece and the locking block when unlocking in the embodiment of the utility model;

[0022] Figure 5 c is a schematic diagram of the relative positions of the first locking piece and the locking block when the lock is child-proofed in the embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the shielding cover in the embodiment of the utility model;

[0024] Figure 7This is a schematic diagram of the structure of the lock cylinder in the embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the locking block in the embodiment of the utility model;

[0026] Fig. 9 It is a schematic diagram of the structure of the guide groove in the embodiment of the utility model.

[0027] Lock body 10, accommodating cavity 11, lock tongue 20, first locking plate 21, second locking plate 22, third locking plate 23, fourth locking plate 24, first elastic member 31, second elastic member 32, handle cover 40, drive plate 41, lock block 50, lock column 51, slider 52, guide groove 53, elastic ring 54, positioning block 55, positioning groove 56, elastic through groove 57, shielding cover 60, connecting column 70, first wedge block 71, second wedge block 72, hook 73. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Reference Figure 1-9A touch lock comprises a lock body 10, and a receiving cavity 11 is provided in front of the lock body 10. The bottom wall of the receiving cavity 11 is rotatably mounted with a first locking piece 21, a second locking piece 22, a third locking piece 23 and a fourth locking piece 24. The first locking piece 21, the second locking piece 22, the third locking piece 23 and the fourth locking piece 24 are all rotatably connected to the bottom wall of the receiving cavity 11 through a rotating shaft in the middle. The first locking piece 21, the second locking piece 22, the third locking piece 23 and the fourth locking piece 24 are arranged and distributed from bottom to top. The right end of the first locking piece 21 is arranged to collide with the right end of the second locking piece 22, the top of the second locking piece 22 is arranged to collide with the bottom of the third locking piece 23, and the right end of the third locking piece 23 is arranged to collide with the right end of the fourth locking piece 24. Seen from the front, the clockwise rotational movement of the second locking piece 22 is blocked by the first locking piece 21 , and the counterclockwise rotational movement of the third locking piece 23 is blocked by both the second locking piece 22 and the fourth locking piece 24 .

[0033] Therefore, when the third locking plate 23 is driven to rotate counterclockwise, the second locking plate 22 and the fourth locking plate 24 can be pushed to rotate clockwise, and the clockwise rotation of the second locking plate 22 can push the first locking plate 21 to rotate counterclockwise, thereby synchronously realizing the opening of the first locking plate 21 and the second locking plate 22 on the left side and the opening of the third locking plate 23 and the fourth locking plate 24 on the left side.

[0034] In other embodiments, the clockwise rotation movement of the second locking plate 22 can be blocked by the first locking plate 21 and the third locking plate 23, and the counterclockwise rotation movement of the third locking plate 23 can be blocked by the fourth locking plate 24. At this time, by driving the second locking plate 22 to rotate clockwise, the first locking plate 21 and the third locking plate 23 can be pushed to rotate counterclockwise, and the counterclockwise rotation of the third locking plate 23 can push the fourth locking plate 24 to rotate clockwise, so that the first locking plate 21 and the second locking plate 22 can be opened on the left side and the third locking plate 23 and the fourth locking plate 24 can be opened on the left side simultaneously. In addition, the opening direction can be set to the right side according to actual needs.

[0035] A handle cover 40 is installed in front of the lock body 10. Both sides of the handle cover 40 are rotatably installed on the left and right inner side walls of the accommodating cavity 11, and the front of the handle cover 40 is arranged flush with the front of the lock body 10. A driving plate 41 is installed in the back of the handle cover 40. The driving plate 41 is arranged perpendicular to the back of the handle cover 40. Both sides of the end of the driving plate 41 away from the handle cover 40 respectively contact the right end of the second locking plate 22 and the right end of the third locking plate 23 that are close to each other. By pulling the handle cover 40, the driving plate 41 can simultaneously push the second locking plate 22 to rotate clockwise and the third locking plate 23 to rotate counterclockwise, so that the first locking plate 21 and the second locking plate 22 can be opened on the left side and the third locking plate 23 and the fourth locking plate 24 can be opened on the left side. In other embodiments, the driving plate 41 can also only contact the right side of the third locking plate 23, and the second locking plate 22 is pushed by the third locking plate 23 to rotate.

[0036] A first elastic member 31 is installed between the first locking piece 21 and the second locking piece 22, and the two ends of the first elastic member 31 are respectively installed at the left end of the first locking piece 21 and the left end of the second locking piece 22. A second elastic member 32 is installed between the third locking piece 23 and the fourth locking piece 24, and the two ends of the second elastic member 32 are respectively installed at the left end of the third locking piece 23 and the left end of the fourth locking piece 24. The first elastic member 31 and the second elastic member 32 can both be spiral springs, and hooks are provided at both ends of the spiral springs. Through holes are provided at corresponding positions of the first locking piece 21, the second locking piece 22, the third locking piece 23 and the fourth locking piece 24, and the hooks are inserted into the through holes, so that the spiral springs can be easily installed and removed.

[0037] When the top of the handle cover 40 is pulled to rotate the handle cover 40, the driving piece 41 pushes the second locking piece 22 and the third locking piece 23, so that the first locking piece 21 and the second locking piece 22 are opened, and the third locking piece 23 and the fourth locking piece 24 are opened. At the same time, the first elastic member 31 and the second elastic member 32 are stretched to store energy; when the handle cover 40 is released, the first locking piece 21 and the second locking piece 22 are closed, the third locking piece 23 and the fourth locking piece 24 are closed under the elastic force of the first elastic member 31 and the second elastic member 32, and the driving piece 41 is pushed to reset, so that the handle cover 40 returns to its initial position. Two lock openings are provided at the left end of the lock body 10, and the two lock openings correspond to the open position between the first locking piece 21 and the second locking piece 22 and the open position between the third locking piece 23 and the fourth locking piece 24, respectively.

[0038] The present embodiment also discloses a sliding door and window, comprising a door and window and a wall frame, wherein the wall frame is mounted on the wall, and the door and window is installed in a sliding manner in the wall frame. A lock body 10 is mounted on the door and window, and two locking tongues 20 arranged side by side are mounted on the wall frame, and the two locking tongues 20 can correspond to two locking ports at the left end of the lock body 10. When the door and window are pushed so that the locking tongue 20 is embedded in the corresponding locking port by overcoming the elastic force of the first elastic member 31 and the second elastic member 32, the first locking piece 21 and the second locking piece 22 can be clamped into the two sides of one of the locking tongues 20, and the third locking piece 23 and the fourth locking piece 24 can be clamped into the two sides of the other locking tongue 20, so as to achieve the locking of the door and window. When the handle cover 40 is pulled, the first locking piece 21 and the second locking piece 22 can be opened, and the third locking piece 23 and the fourth locking piece 24 can be opened, so as to achieve the unlocking of the door and window.

[0039] A coil spring may be installed between the rear of the handle cover 40 and the bottom wall of the accommodating chamber 11, and the elastic force of the coil spring may enable the handle cover 40 to quickly and reliably return to its initial position.

[0040] A child lock is installed at the bottom of the lock body 10. The child lock includes a lock column 51 rotatably installed at the bottom of the lock body 10. A hexagonal groove is provided on one end face of the lock column 51 and the end face is exposed in front of the lock body 10. A slider 52 is provided at the edge of the end face of the lock column 51 away from the hexagonal groove. The slider 52 is cylindrical. A lock block 50 is slidably installed in the left and right directions at the bottom of the accommodating cavity 11. A vertical block is integrally formed at the right end of the lock block 50 and at one side close to the lock column 51. A vertical guide groove 53 is provided on one side of the vertical block close to the lock column 51. The slider 52 is embedded in the guide groove 53.

[0041] Reference Figure 5 In a and b, when the child lock is not in use, the lock block 50 is located at the lower right of the first lock plate 21, and the lock block 50 does not hinder the normal rotation of the first lock plate 21, so that the first lock plate 21 can rotate normally to unlock. Figure 5 In c, when the child lock needs to be used, when the lock cylinder 51 is rotated half a circle using a tool from the front of the lock body 10, the slider 52 can push the lock block 50 from the rightmost position to the leftmost position, so that the lock block 50 is under the first lock plate 21. The lock block 50 is blocked under the first lock plate 21, so that the first lock plate 21 cannot be rotated counterclockwise, and the lock cannot be unlocked, thereby preventing children from accidentally opening the door. At the same time, it can also prevent the first lock plate 21 from being pried from the outside of the lock body 10.

[0042] An elastic ring 54 is arranged around the outer periphery of the lock cylinder 51. The elastic ring 54 can be made of plastic with good elasticity. Positioning blocks 55 protruding outward are arranged on both sides of the outer periphery of the elastic ring 54. The positioning blocks 55 are semi-cylindrical. A positioning groove 56 is provided on the bottom wall of the receiving groove. The inner wall shape of the positioning groove 56 is adapted to the outer shape of the positioning block 55. Elastic through grooves 57 are provided on both sides of the elastic ring 54 corresponding to the positioning block 55. The elastic through grooves 57 penetrate the elastic ring 54. The cross section of the elastic through grooves 57 is an isosceles triangle and the vertex angle is arranged corresponding to the positioning block 55. When the lock cylinder 51 is rotated so that the two positioning blocks 55 are respectively embedded in the positioning grooves 56, the slider 52 corresponds to the leftmost and rightmost positions respectively, even if the lock block 50 is respectively at the leftmost and rightmost positions, so that the child lock can be stabilized and positioned in the locked position and unlocked position.

[0043] A shielding cover 60 is installed in front of the lock body 10 and above the handle cover 40. The top two sides of the shielding cover 60 are respectively rotatably installed on the left and right inner walls of the accommodating cavity 11. The front of the shielding cover 60 is arranged flush with the front of the lock body 10. The opening of the accommodating cavity 11 is rectangular, and the shielding cover 60 and the handle cover 40 can just completely cover the opening of the accommodating cavity 11, making the front of the lock body 10 more beautiful. The bottom of the shielding cover 60 can be inserted into the accommodating cavity 11 by rotation, so that people can easily put their fingers into the accommodating cavity 11 and pull out the top of the handle cover 40 to unlock the doors and windows. A coil spring can also be installed between the back of the shielding cover 60 and the bottom wall of the accommodating cavity 11, so that the shielding cover 60 can quickly and reliably return to its initial position.

[0044] A connecting column 70 is rotatably mounted on the upper wall of the accommodating chamber 11, and the two ends of the connecting column 70 are respectively located in front and back positions. A hexagonal groove is provided at the front end of the connecting column 70 and is exposed in the accommodating chamber 11. A first wedge block 71 is slidably mounted on the top of the lock body 10, and the first wedge block 71 is threadedly connected to the connecting column 70. A second wedge block 72 is also vertically slidably mounted on the top of the lock body 10, and the second wedge block 72 is located above the first wedge block 71, and the inclined surface of the first wedge block 71 is arranged to conflict with the inclined surface of the second wedge block 72. A hook 73 is arranged on the top of the second wedge block 72. The top of the shielding cover 60 shields the connecting column 70. Specifically, the position where the shielding cover 60 is rotatably connected to the lock body 10 is slightly lower than the position of the connecting column 70, so that when the bottom wall of the shielding cover 60 is embedded in the accommodating cavity 11, the front end of the connecting column 70 can be exposed, so that people can use tools to rotate the connecting column 70 to make the first wedge block 71 move back and forth, and push the second wedge block 72 to move upward, so that the hook 73 can extend out of the lock body 10 and embed into the installation groove of the door and window, thereby facilitating the lock body 10 to be fixed in the installation groove of the door and window.

[0045] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A latch lock, characterized in that: include: A lock body, wherein a receiving cavity is formed in the lock body, and a first locking piece and a second locking piece are rotatably mounted on the inner side of the receiving cavity, wherein a first elastic member is connected between the first locking piece and the second locking piece on the same side end, and the first locking piece and the second locking piece are arranged to contact each other on the other side end; A handle cover is rotatably mounted on the lock body, and the handle cover is provided with a driving piece for driving the second locking piece to rotate, so that the first locking piece and the second locking piece overcome the elastic force of the first elastic member and rotate in opposite directions to achieve unlocking; The locking block is slidably arranged on the lock body, and when the locking block is at one end of the movement path, the locking block conflicts with the first locking piece.

2. A latch according to claim 1, characterized in that: The lock body is rotatably mounted with a lock column, the lock column is provided with a slide block, the lock block is provided with a guide groove for the slide block to slide, and the sliding direction of the slide block is perpendicular to the sliding direction of the lock block.

3. A latch according to claim 2, characterized in that: An elastic ring is arranged on the outer periphery of the lock column, a positioning block is protruded outwardly from the outer periphery of the elastic ring, and a positioning groove for the positioning block to be embedded is opened on the side wall of the lock body.

4. A latch according to claim 3, characterized in that: The elastic ring is provided with an elastic through groove near the positioning block.

5. A latch according to claim 1, characterized in that: The side wall of the accommodating cavity is also rotatably mounted with a third locking plate and a fourth locking plate, the third locking plate and the fourth locking plate are connected with a second elastic member between one end and are arranged to conflict with each other at the other end, the second locking plate is arranged to conflict with the third locking plate, and the driving plate is arranged to conflict with the third locking plate.

6. A latch according to claim 5, characterized in that: The driving plate is disposed in conflict with the second locking plate.

7. A latch according to claim 1, characterized in that: The lock body is rotatably mounted with a shielding cover, and the shielding cover and the handle cover just cover the opening of the accommodating cavity, and the accommodating cavity can be used for the shielding cover to be embedded at one end close to the handle cover.

8. A latch according to claim 7, characterized in that: The lock body is rotatably mounted with a connecting column, the connecting column is threadedly mounted with a first wedge block, the first wedge block is slidably arranged in the accommodating cavity, the accommodating cavity is slidably arranged with a second wedge block that conflicts with the first wedge block, and the second wedge block is provided with a hook.

9. A latch according to claim 8, characterized in that: The connecting column is located in the accommodating cavity, and the shielding cover covers the outside of the connecting column.

10. A sliding door and window, characterized in that: The invention comprises a latch as described in any one of claims 1 to 9.

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